User manual VELODYNE DD-15PLUS QUICK GUIDE

[. . . ] . 10 ­ A Word About Interconnect Cables . . 10 ­ A Word About Subwoofer Placement . . 11 Selecting the Subwoofer(s) to be Controlled . . 11 ­ Using the SC-1250 to Drive Two Subwoofers . [. . . ] The detachable cord allows for easy replacement should the original be damaged. (21) Fuse If the unit is not functioning, check the fuse. If the fuse is blown, replace with an identically rated fuse. If the fuse blows again, refer the unit for service. (22) Master Power Switch Press the POWER switch to the ON position to activate the amplifier. If the unit is to be left unused for an extended period of time, move this switch to the OFF position to prolong the life of the amplifier. REAR PANEL CONNECTIONS ­ DETAILED EXPLANATION The SC-1250 is equipped with both speaker-level and line-level inputs. Use the RCA/Phono type "INPUT" jacks when connecting from a pre-amp, signal processor, or line-level crossover. The "SPEAKER LEVEL INPUT" jacks connect directly to the speaker outputs of an integrated amplifier or receiver. Your amplifier section will notice no additional loading effects when you use these inputs because of their high impedance. To reactivate the low-pass crossover, simply push the crossover UP or crossover DOWN buttons. -- A W o r d A b o u t Yo u r R e c e i v e r ' s C r o s s o v e r and the SC-1250 Crossover Your Velodyne SC-1250 amplifier is designed to operate using the full range audio signal for input when using the built-in crossover. Many home theater processors/receivers (Dolby Digital®, DTS®, THXTM) have a "subwoofer out" jack that performs this same function and are designed to be used with a powered subwoofer. The SC-1250 comes with a default setting for the SC-10 subwoofer. When the unit is first powered up, the model being controlled is displayed for 2 seconds on the numeric LED before the display reverts to the volume setting. The subwoofer to be controlled is shown as follows: Model SC-8 SC-10 SC-12 SC-15 LED Display Model S C - I n - Wa l l ( S C - I W ) SC-In-Floor (SC-IF) SC-In-Ceiling (SC-IC) LED Display 8 I0 I2 I5 IW IF IC GS G e n e r i c S u b w o o f e r ** ** - The generic subwoofer setting is for passive subwoofers not on the above list. CAUTION: there is no anticlipping or anti-distortion protection on this setting. To change the subwoofer to be controlled, first power down the amplifier using the power switch on the back panel (DO NOT use the power button on the front panel). Then, turn the switch on while depressing any of the buttons on the front panel (crossover up or down, or volume up or down). The unit will show the model it is currently controlling. To change the model, simply push the crossover up or crossover down buttons and the model changes on the LED display. Once the desired model is seen on the LED display, simply release the button. You don't need to do anything else - the model to be controlled is automatically stored in the SC-1250's www. velodyne. com SubContractor User's Manual . 11 memory. To exit model selection mode, use the power switch on the back panel to power down and power up the unit. [. . . ] Following is a simple troubleshooting guide to assist you. Verify that the unit is plugged in and power outlet used is active. Is the unit receiving an input signal from your source?Have all controls on the amplifier (volume, crossover, phase, etc. ) been properly set? [. . . ]